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BOJ_13552.java
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BOJ_13552.java
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import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
public class Main extends FastInput {
private long getPowOfDistance(int[] point, int x, int y, int z){
int a = point[0]-x;
int b = point[1]-y;
int c = point[2]-z;
return 1l*a*a+1l*b*b+1l*c*c;
}
private void solution() throws Exception {
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
int n = nextInt();
int[][] arr = new int[n][3];
for (int i = 0; i < n; i++) {
arr[i][0] = nextInt();
arr[i][1] = nextInt();
arr[i][2] = nextInt();
}
int m = nextInt();
StringBuilder sb = new StringBuilder();
while (m-->0) {
int x = nextInt();
int y = nextInt();
int z = nextInt();
int r = nextInt();
long rPow = 1l*r*r;
int cnt = 0;
for (int i = 0; i < n; i++) {
if (getPowOfDistance(arr[i], x, y, z) <= rPow) cnt++;
}
sb.append(cnt).append('\n');
}
bw.write(sb.toString());
bw.flush();
}
public static void main(String[] args) throws Exception {
initFI();
new Main().solution();
}
}
class FastInput {
private static final int DEFAULT_BUFFER_SIZE = 1 << 16;
private static DataInputStream inputStream;
private static byte[] buffer;
private static int curIdx, maxIdx;
protected static void initFI() {
inputStream = new DataInputStream(System.in);
buffer = new byte[DEFAULT_BUFFER_SIZE];
curIdx = maxIdx = 0;
}
protected static int nextInt() throws IOException {
int ret = 0;
byte c = read();
while (c <= ' ') c = read();
do {
ret = ret * 10 + c - '0';
} while ((c = read()) >= '0' && c <= '9');
return ret;
}
private static byte read() throws IOException {
if (curIdx == maxIdx) {
maxIdx = inputStream.read(buffer, curIdx = 0, DEFAULT_BUFFER_SIZE);
if (maxIdx == -1) buffer[0] = -1;
}
return buffer[curIdx++];
}
}